diff options
Diffstat (limited to 'src/main.rs')
-rw-r--r-- | src/main.rs | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/src/main.rs b/src/main.rs index 98b49ed..d5147ff 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,11 +1,14 @@ use std::env; use std::io::{self, Write}; use std::sync::{Arc, Mutex}; +mod buffer; mod path; mod poem; use poem::{read::Readable, recite::Reciteable, Poem}; mod compose; +use buffer::{getline, STDIN}; use compose::Environment; +use termios::{tcsetattr, Termios, ECHO, ICANON, TCSANOW}; /// Starts the main shell loop /// @@ -22,12 +25,22 @@ use compose::Environment; /// repl(&mut away, &mut env); /// } /// ``` -fn repl(away: &mut Arc<Mutex<bool>>, env: &mut Environment) { +fn repl(away: &mut Arc<Mutex<bool>>, buffer: &mut Arc<Mutex<Vec<u8>>>, env: &mut Environment) { + // Setup termios flags + let mut termios = Termios::from_fd(STDIN).unwrap(); + termios.c_lflag &= !(ICANON | ECHO); + // Initial path refresh on startup env.bins = path::refresh(); // Main shell loop loop { + // Reset terminal using proper termios flags + tcsetattr(STDIN, TCSANOW, &mut termios).unwrap(); + + // Clear the buffer + buffer.lock().unwrap().clear(); + // Get the prompt let prompt = match env::var("PS1") { Ok(val) => val, @@ -42,10 +55,7 @@ fn repl(away: &mut Arc<Mutex<bool>>, env: &mut Environment) { *away.lock().unwrap() = false; // Wait for user input - let mut poetry = String::new(); - let bytes = io::stdin() - .read_line(&mut poetry) - .expect("dwvsh: error: unable to evaluate the input string"); + let bytes = getline(buffer); // Check if we've reached EOF (i.e. <C-d>) if bytes == 0 { @@ -53,8 +63,10 @@ fn repl(away: &mut Arc<Mutex<bool>>, env: &mut Environment) { break; } - // Trim the input - let poetry = String::from(poetry.trim()); + // Convert buffer to a string and trim it + let poetry = String::from_utf8_lossy(&buffer.lock().unwrap()) + .trim() + .to_string(); // Skip parsing if there is no poetry if poetry.is_empty() { @@ -132,9 +144,12 @@ fn main() { // Handle signals let mut away = Arc::new(Mutex::new(true)); + let mut buffer: Arc<Mutex<Vec<u8>>> = Arc::new(Mutex::new(vec![])); unsafe { let away = Arc::clone(&away); + let buffer = Arc::clone(&buffer); signal_hook::low_level::register(signal_hook::consts::SIGINT, move || { + buffer.lock().unwrap().clear(); if *away.lock().unwrap() { println!(); } else { @@ -153,5 +168,5 @@ fn main() { options(&mut env); // Begin evaluating commands - repl(&mut away, &mut env); + repl(&mut away, &mut buffer, &mut env); } |